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Alexey_02_15975's avatar
Alexey_02_15975
Icon for Nimbostratus rankNimbostratus
Jun 04, 2014

Monitoring LB resopenses count for each HTTP code

Hello!

Device: big-ip ltm 1600 series. I use zabbix to monitor device. I have LB configured on it, and I have to make check of count of particular HTTP codes responses. Is it possibe?

Ex: member1_http_response_200 = x member1_http_response_400 = x member1_http_response_501 = x member1_http_response_503 = x etc..

Load Balancer configured with the device:

monitor http_%NODE%monitor {
   defaults from http
   recv "%STRING%"
   send "GET %URL%"
}
pool %NODE% {
   action on svcdown reselect
   monitor all tcp
   members {
      %MEMBER1%:http {}
      %MEMBER2%:http {}
      %MEMBER3%:http {}
   }
}
virtual %NODE% {
   snat automap
   pool %NODE%
   destination %LB-VIP%:http
   ip protocol tcp
}

Monitoring use SNMP to poll the device

BIG-IQ
management

8 Replies

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  • nitass_89166's avatar
    nitass_89166
    Icon for Noctilucent rankNoctilucent
    Jun 04, 2014

    I have to make check of count of particular HTTP codes responses. Is it possibe?

    i believe there are a couple of ways. this is an example of istats.

    Introduction to iStats Part 1: Overview by Colin Walker

    https://devcentral.f5.com/articles/introduction-to-istats-part-1-overview.U47i8CjNyCQ 
     config

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 41
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_RESPONSE {
  ISTATS::incr "ltm.virtual /Common/bar c HTTP_[HTTP::status]" 1
}
}

 stats (User-defined section)

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) show ltm virtual bar

------------------------------------------------------------------
Ltm::Virtual Server: bar
------------------------------------------------------------------
Status
  Availability     : unknown
  State            : enabled
  Reason           : The children pool member(s) either don't have service checking enabled, or service check results are not available yet
  CMP              : enabled
  CMP Mode         : all-cpus
  Destination      : 172.28.24.10:80

Traffic                             ClientSide  Ephemeral  General
  Bits In                               575.2K          0        -
  Bits Out                                1.1M          0        -
  Packets In                            1000.0          0        -
  Packets Out                           1000.0          0        -
  Current Connections                        0          0        -
  Maximum Connections                      100          0        -
  Total Connections                        200          0        -
  Min Conn Duration/msec                     -          -     4.0K
  Max Conn Duration/msec                     -          -     4.6K
  Mean Conn Duration/msec                    -          -     4.0K
  Total Requests                             -          -      200

SYN Cookies
  Status                         not-activated
  Hardware SYN Cookie Instances              0
  Software SYN Cookie Instances              0
  Current SYN Cache                          0
  SYN Cache Overflow                         0
  Total Software                             0
  Total Software Accepted                    0
  Total Software Rejected                    0
  Total Hardware                             0
  Total Hardware Accepted                    0

CPU Usage Ratio (%)
  Last 5 Seconds                             0
  Last 1 Minute                              0
  Last 5 Minutes                             0

User-defined  Value
  HTTP_200  100
  HTTP_302  100
    • Alexey_02_15975's avatar
      Alexey_02_15975
      Icon for Nimbostratus rankNimbostratus
      Jun 04, 2014
      Colin, do you know is it possible to publish this values to SNMP OIDs? Or may be , it is possible to share it with HTTP or some other interface (the goal is to push it to zabbix... no... to let zabbix to pull this values;) )
    • Alexey_02_15975's avatar
      Alexey_02_15975
      Icon for Nimbostratus rankNimbostratus
      Jun 04, 2014
      Colin, we observered, that we used software version 10.2 , and this version doesn't support ISTATS. Unfortunately we can't upgrade to 11.0 version. Can you suggest another solution? Appreciate your time and thank you in advance!
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Jun 04, 2014

    I have to make check of count of particular HTTP codes responses. Is it possibe?

    i believe there are a couple of ways. this is an example of istats.

    Introduction to iStats Part 1: Overview by Colin Walker

    https://devcentral.f5.com/articles/introduction-to-istats-part-1-overview.U47i8CjNyCQ 
     config

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 41
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_RESPONSE {
  ISTATS::incr "ltm.virtual /Common/bar c HTTP_[HTTP::status]" 1
}
}

 stats (User-defined section)

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) show ltm virtual bar

------------------------------------------------------------------
Ltm::Virtual Server: bar
------------------------------------------------------------------
Status
  Availability     : unknown
  State            : enabled
  Reason           : The children pool member(s) either don't have service checking enabled, or service check results are not available yet
  CMP              : enabled
  CMP Mode         : all-cpus
  Destination      : 172.28.24.10:80

Traffic                             ClientSide  Ephemeral  General
  Bits In                               575.2K          0        -
  Bits Out                                1.1M          0        -
  Packets In                            1000.0          0        -
  Packets Out                           1000.0          0        -
  Current Connections                        0          0        -
  Maximum Connections                      100          0        -
  Total Connections                        200          0        -
  Min Conn Duration/msec                     -          -     4.0K
  Max Conn Duration/msec                     -          -     4.6K
  Mean Conn Duration/msec                    -          -     4.0K
  Total Requests                             -          -      200

SYN Cookies
  Status                         not-activated
  Hardware SYN Cookie Instances              0
  Software SYN Cookie Instances              0
  Current SYN Cache                          0
  SYN Cache Overflow                         0
  Total Software                             0
  Total Software Accepted                    0
  Total Software Rejected                    0
  Total Hardware                             0
  Total Hardware Accepted                    0

CPU Usage Ratio (%)
  Last 5 Seconds                             0
  Last 1 Minute                              0
  Last 5 Minutes                             0

User-defined  Value
  HTTP_200  100
  HTTP_302  100
    • Alexey_02_15975's avatar
      Alexey_02_15975
      Icon for Nimbostratus rankNimbostratus
      Jun 04, 2014
      Colin, do you know is it possible to publish this values to SNMP OIDs? Or may be , it is possible to share it with HTTP or some other interface (the goal is to push it to zabbix... no... to let zabbix to pull this values;) )
    • Alexey_02_15975's avatar
      Alexey_02_15975
      Icon for Nimbostratus rankNimbostratus
      Jun 04, 2014
      Colin, we observered, that we used software version 10.2 , and this version doesn't support ISTATS. Unfortunately we can't upgrade to 11.0 version. Can you suggest another solution? Appreciate your time and thank you in advance!
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Jun 04, 2014

    do you know is it possible to publish this values to SNMP OIDs?

    unfortunately, it is not available through snmp yet. there is rfe. you may open a case to expedite the process.

    ID380761 - RFE: export iStats via SNMP

    in the meantime, you may try stats profile instead but stats has to be predefined (not like istats which can be created on the fly). 

    10.0, statistics profiles are not fully CMP compatible. Each TMM instance uses a separate instance of the statistic profile. The cumulative counts are shown in the GUI and when polled via SNMP.

    CMP Compatibility

    https://devcentral.f5.com/wiki/iRules.cmpcompatibility.ashx